What Is a Root Canal? Let Us Explain.

Watch the short video above where I walk you through exactly what a root canal is and why it matters for your tooth. Then keep reading — I want to make sure you really understand what is going on inside your mouth before you ever sit down in my chair.

At Denovo Dental Studio, we believe an informed patient is a calm patient. So let’s talk about it.

It Always Starts With a Small Cavity

A cavity always starts out small. That is just the truth. But here is the thing — cavities do not reverse course on their own. They do not just stop growing and decide to be nice to you. A cavity will keep growing, and growing, and growing until it hits the inside of your tooth.

And once it gets there? That is when things get serious.

The inside of your tooth is called the pulp or the nerve. Think of it like the soft, gooey center of the tooth. It is the living part — the part with nerves and blood vessels running through it. And it is not just a little dot in the middle. It is literally a canal. Think of it like a chute that runs all the way down through the tooth, down to the bottom of the socket, and that is where the nerves spread out into the bone.

So when a cavity grows far enough to hit that nerve — that canal — we have a real problem on our hands.

Once It Hits the Nerve, There Is No Going Back

This is the part I really want you to understand. Once a cavity reaches the nerve, the tooth is fully infected. There is no reversing it. There is no “wait and see.” It is not going to get better on its own.

Think of it like standing on an escalator. You are either going up or going down. You cannot just stand there and stay still — that is not how escalators work, and it is not how tooth infections work either. If we go in and fix it, great. If we do not? It just keeps getting worse.

That is not me trying to scare you. That is just the reality of what is happening inside your tooth.

Here is what can happen if an infected tooth is left alone:

• The pain gets worse, not better
• The infection can spread to your jaw and surrounding teeth
• You can develop a dental abscess — a pocket of infection near the root of the tooth
• In serious cases, the infection can move beyond your mouth entirely

The good news is that a root canal stops all of that. It removes the infection and gives your tooth a real second chance.

Is a Root Canal Painful?

This is the number one thing people ask me. And I get it — nobody wants to hear “you need a root canal.” But here is what most people do not realize: a root canal does not cause pain. It takes pain away.

Before we do anything, we get you super numb. You should not feel a thing during the procedure. Most patients are genuinely surprised by how easy it is. A lot of people tell me it felt no different than getting a regular filling.

The pain you are feeling before the root canal — that deep, throbbing toothache — that is the infection. The root canal is what makes that go away.

Signs You Might Need a Root Canal

Not sure if this is what you are dealing with? Here are some signs to watch for:

• A toothache that just will not quit — especially a deep, throbbing pain
• Pain when you bite down or chew
• Sensitivity to hot or cold that sticks around even after the temperature is gone
• A swollen or tender jaw near the painful tooth
• A small bump on your gum that looks like a pimple — that can be a sign of infection draining
• A tooth that has gotten darker or changed color compared to your other teeth

If any of those sound familiar, do not wait. The sooner we catch it, the more we can do for you.

So What Actually Happens During a Root Canal?

Here is exactly what we do, step by step:

1. We get you numb. Completely numb. You are not going to feel pain — I promise you that.
2. We open the tooth. We make a small opening in the top of the tooth to get inside.
3. We clean out the infection. Using small, precise tools, we remove all of the infected nerve and pulp — all the way down to the very end of the root. The whole canal gets cleaned out.
4. We fill it with soothing medicine. Once everything is clean, we backfill the tooth with a safe, soothing material. It seals the inside and keeps bacteria from getting back in.
5. We cover it with a crown. Finally, we place a strong crown over the top of the tooth to protect it and keep it functioning like a normal tooth.

That is it. One to two visits and your tooth is saved.

How Long Will It Last?

Here is the part that surprises most people — a root canal can last for the rest of your life.

The medicine we put inside the tooth stays there permanently. It does not break down or need to be replaced. And as long as you take care of that tooth, it can keep working for you for 20, 30, even 40-plus years.

I have got patients in their 90s — and their root canals have been in there since the 1980s. It is 2026 now. That is over 40 years of a healthy, functioning tooth. They used to call the material “silver points” back then. Different material, same idea — and those teeth are still going strong.

The key is to remember that it is still a tooth. You still have to brush it. You still have to floss it. Just because the nerve is gone does not mean the tooth takes care of itself. Treat it like any other tooth and it will take care of you right back.

Root Canal or Pull the Tooth — What Is Better?

Some people ask me, “Why not just pull it?” And I understand why that feels like the simpler option. But saving your natural tooth is almost always the better choice — and here is why:

• Your natural tooth is stronger than any replacement we can make
• When a tooth is pulled, the surrounding teeth can slowly shift into that empty space
• Missing teeth can lead to bone loss in the jaw over time
• Dental implants and bridges — the replacements for a pulled tooth — cost more and take longer than a root canal

A root canal lets you keep what you already have. And what you already have is pretty hard to beat.

Why Denovo Dental Studio?

At Denovo Dental Studio, we do not judge. It does not matter how long it has been since you last saw a dentist. It does not matter what your teeth look like right now. We are here to help you, not make you feel bad about where you are starting from.

We take the time to explain everything so you know exactly what is happening and why. We want you to feel comfortable, informed, and confident — every single visit.

Your smile matters to us. And we are going to take care of it like it does.

What Do You Do Next?

If your tooth is hurting, do not sit on it. The longer you wait, the fewer options we have. A root canal can stop your pain, save your tooth, and get you back to feeling like yourself — fast.

We make it easy to get started. Just reach out and we will take it from there!